<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <form method="post" action="formDemo">
        请输入昵称：<input name="username" type="text">
        请输入密码：<input name="password" type="password">
        再次输入密码：<input name="password_confirm" type="password">
        请输入邮箱： <input name="email" type="email">
        <input type="submit" value="提交">
    </form>
</body>
</html>